They have to exclude lawyers and politicians, just as they used to not allow any professional athletes to participate in the Olympics. It's a smart rule to keep those who lie for a living out of the competition. If Bill Clinton were allowed to participate it would be over before it started, and he did attend Oxford so he is familiar with telling lies over there. He probably had a field day back then with the women, considering the fact he has straight teeth that are not stained like many of classmates would have.